公开(公告)号：US20240068159A1

公开(公告)日：2024-02-29

申请号：US17766458

申请日：2021-05-20

申请人： Jiangsu Xingda Steel Tyre Cord Co., Ltd.

发明人： Xiang LIU ,  Aiping WANG ,  Weiming MA ,  Nianpeng ZHAO ,  Xianghui LIU ,  Zengguang KE ,  Hengxiang CAO

IPC分类号： D07B1/06 ,  D07B1/16

CPC分类号： D07B1/0633 ,  D07B1/0666 ,  D07B1/162 ,  D07B2201/1036 ,  D07B2201/1052 ,  D07B2201/2006 ,  D07B2201/2037 ,  D07B2201/2051 ,  D07B2501/2046

摘要： A compact steel cord is provided. The cord includes a core-filament I steel wire with a diameter of d0, and four middle-layer M steel wires with a diameter of d1 and eight outer-layer O steel wires with a diameter of d2 that are twisted around the core-filament I steel wire in the same lay direction and the same lay length. Gaps L are reserved between the outer-layer O steel wires, an average width of the gaps L is not smaller than 0.02 mm, and the total size of the gaps L is larger than d0 and smaller than d1. The steel cord of a stable structure can be obtained by controlling the proportion of the sizes of all layers of monofilaments, the rubber coating performance of a tire cord can also be improved, the corrosion resistance, fatigue resistance, impact resistance and adhesion retention of a tire are improved.